1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/* vi: set sw=4 ts=4: */
/* Copyright (C) 1992, 1997, 1998, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <features.h>
#include <unistd.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <string.h>
/* Return a malloc'd string containing the current directory name.
If the environment variable `PWD' is set, and its value is correct,
that value is used. */
char *
get_current_dir_name (void)
{
char *pwd;
#if defined __UCLIBC_HAS_LFS__
struct stat64 dotstat, pwdstat;
#else
struct stat dotstat, pwdstat;
#endif
pwd = getenv ("PWD");
if (pwd != NULL
#if defined __UCLIBC_HAS_LFS__
&& stat64 (".", &dotstat) == 0
&& stat64 (pwd, &pwdstat) == 0
#else
&& stat (".", &dotstat) == 0
&& stat (pwd, &pwdstat) == 0
#endif
&& pwdstat.st_dev == dotstat.st_dev
&& pwdstat.st_ino == dotstat.st_ino)
/* The PWD value is correct. Use it. */
return __strdup (pwd);
return getcwd ((char *) NULL, 0);
}
|
